That's a brothel , so they don't have intimate feeling at each other. They just play around.
something like this is not my favorite , i read it but i didn't really pay attention to the stuffs , i was just reading their conversations.
The reason i like yuri isn't because the vulgarity , but the intimate feeling , loyality , pure love.
Girls playing around and calling themselves lesbians✖
Girls purely love each other and want to spend their life together to live a happy life✔
Rarely or almost never have sex is way better than frequently have sex but just play around and don't have feeling against each other.